OK As I promised that on 15.04.2019 Will give a update so:
-In MUC there no possibility to buy-in to Senator lounge when you fly SWISS. It must be a LH flight
- in ZRH there is no possibility to buy-in totally.
-A Lounge is terrible, overcrowded and no to much food options, I am really disappointed
For the place you must be patient and search like "eagle victim"....tragedy....
-2 hours of delay and additional they started boarding without any priority and then we waited 20 minutes before bus will come of course all passengers to one bus without any additional bus for business class. Then we waited next 20 minutes in bus for plane preparation.
-in plus -all service on board. This was perfect and excellent especially FA for Business Class. Women which was form France we spoke a little bit regarding services in Business Class between LH City Line, Swiss and LOT. She was very nice and simpatic. Travel was excellent but ZRH airport services tragically.